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United States Patent | 5,546,958 |
Thorud ,   et al. | August 20, 1996 |
A guidewire extension system including a guidewire and an extension wire is disclosed. The system includes female and male connector segments located on the proximal end of the guidewire or the distal end of the extension wire. The hollow female connector segment, in one embodiment, includes a radial lip which intersects with lateral slots. The male connector segment includes an external groove. When the male connector is inserted into the female connector segment, the slots are expanded and the lip snaps into the groove providing a tactile indication that connection is completed. No restriction or frictional fit is created. The guidewire and extension wire are freely rotatable with respect to each other and can be multiply connected and disconnected. Methods of catheter exchange with tactile indication of guidewire extension wire connection are disclosed.
Inventors: | Thorud; Michael S. (Bloomington, MN); Assell; Robert L. (Mendota Heights, MN) |
Assignee: | Lake Region Manufacturing Company, Inc. (Chaska, MN) |
Appl. No.: | 220902 |
Filed: | March 31, 1994 |
Current U.S. Class: | 600/585; 600/434 |
Intern'l Class: | A01B 005/00 |
Field of Search: | 128/772,657 604/95,104,280,281,282,283 |
4790825 | Dec., 1988 | Bernstein et al. | 128/772. |
5109867 | May., 1992 | Twyford, Jr. | 128/772. |
5117838 | Jun., 1992 | Palmer et al. | 128/772. |
5139032 | Aug., 1992 | Jahrmarkt et al. | 128/772. |
5188621 | Feb., 1993 | Samson | 128/772. |
5197486 | Mar., 1993 | Frassica | 128/772. |
5247942 | Sep., 1993 | Prather et al. | 128/772. |